[Gmsh] discrete-continuum mesh

Christophe Geuzaine c.geuzaine at ulg.ac.be
Fri Jun 24 02:14:04 CEST 2005


Neilen Marais wrote:
> Hi!
> 
> I haven't yet used gmsh, but I plan to be soon.
> 
> On Thu, 2005-06-23 at 14:53 +0200, Kovacs, Attila wrote:
> 
> 
>>For the latter purpose I need a mesh generation approach which can
>>combine 2d and 3d elements in a manner that the nodes and edges of
>>neighbouring elements of different dimensions are geometrically 
>>identical.
> 
> 
> I need the same functionality! I'm working on a microwave frequency
> electromagnetic FEM code. Being able to get triangles matching the faces
> of tetraheders is very usefull for specifying absorbing boundary
> conditions, or when hybridising with other methods. 
> 
> 
>>Do you have a method for solving this problem?
> 
> 
> Indeed, can this be done?
> 

Yes. This is actually, by design, the only way Gmsh works. Gmsh only 
generates meshes for which triangles on the boundary are faces of 
tetrahedra in the volume.



> Thanks
> Neilen
> 
> 
> 
> 
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> 


-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org